PRODUCT SPECIFICATIONS
- Digium 1VPM032LF Thirty-two (32) Channel Hardware Echo Cancellation Module for use on A4x and A8x series cards.
- When Asterisk is connected to a PSTN, voice echo is possible.
- While software-based solutions are available, they aren't always effective.
- This echo cancellation unit attaches to the FXO / FXS card and provides an effective means of improving voice quality.